Pile-wire cutter



Feb. 1,1927. 1,616,347

` M. B. BEHRMAN PILE WIRE CUTTER Filed July 6, 1925 26" a l0 www "wh gIIHHII 2265 '4 lll INVENToR ATT NEY Patented Feb. l, 1927.

MARCUS is. Benni/ran, or New venir, n. Y., assieivoa rro rrr-ii Lorisnai. ooiaroiaa Tron oniseoonLYN, 'NEW Yoan, A ooiaironnrioi'i orNEWYORK.

PILE-WRE CUTTER.

Application filed July 6,

through the loops. Due to the rapidity witlrivhich these pile wires arethrown 1n and withdrawn and the number of threads to be cut upon eachwithdrawalv each cutting edge is subject to a `great number ofcuttingoperations in a short time and therefore dulls quickly and such edgesmust obviously there fore be either frequently' resharpened orfrequently replaced.

The use of `a cutter` which is separable from the pile wire forpermitting replacei ment of the blade is attended with a number ofproblems amongst which is that arising from the fact that thearrangement. for securing the blade in position on the one hand mustserve to hold the blade in such fixed-association with the pile wirethat it will not shift therein nor will it be acci-v dentally separatedtherefrom and, on the other hand, lwill so secure the blade as not torender its removal difficult or time con`- suming. v 1

One of the important objects vof my invention, therefore, listheprovision of an arrangement wherebya cutting blade is so associatedwithl the pile wire that while it is fiXedly held in position thereonand against accidental removal, its quick and effective removal ispermitted. y v

Looms of the typereferred to, are already provided with pile wiresfanditi is one ofthe vimportant objects of my` invention to so devise thecutter holder and its manner of association with a pile wire that theholdercan be formed as a separable unit for attachnient to a pile wireand can be associated with the conventional form of pile vwire withoutrequiring a replacement of the pile wires or any substantial change ofrecon- 'l'rangement whereby a separable struction thereto. p

My invention generally involves an arcutters are so associated with.

blade i is 1925. serial No. 41,515.

first preliminarily associated withthe holder.

and then moved to itsfina-l position of asso# ciation in which position,,it is-held against movement and one of theobjects of ymy. invention isthe provision of an arrangement wherebyv the preliminary associationlofthe. bladewith the holder vcan be` readily attained and forthispurpose, Iliave kprovided means whereby the manner of the preliminaryasso-` ciation 0f` the two is definitely `predeter-r` mined and thispredetermination ,I vattain by providing on the holder elementfto be soassociated with Ithe blade 4that the blade cannot be given only apivotal movement with reference to vthe holder.

My invention further provides an arrange--v ment whereby as the blad-eis 4given Such pivotal movement toward its predeterminedl filialposition. not only will such Ypredetermined final position also bedefinitely predetermined, but the blade will be lock-ed in suchpredetermined final position "against movement therefrom in anydirection.

My invention. generally involves the pro ductionof a simple inexpensiveand efficient blade holding attachment for .a pile wire,

which on the one hand holds the blade fiX- .such other objects as ymayhereinafter ap-` pear or be pointed out, I have illustrated anembodiment of my invention in the draw'-` ings wherein: I Fig. ljisaside elevational view showing a blade in its final predeterminedassociation with the holder; i f Fig. 2 is a similar view showing theblade removed from the holder; i `f. y 1. 3 is a view similar to Fig. 1showing.. the blade in its preliminary position of association with theholder;

Fig.` 4 is a side 'elevational view showing the flap in ran intermediatestage and. aslit` is being moved fromthe preliminary stage of 'Figi 3 toits final stage of Fig. l;

Fig. 5 is a top planview, looking down y .upon Fig. 1; and

Fig. 6 is a cross-section taken on line (i4-.6. of Fig. EZ..A

form of a thin strip' of sheet material bent 1 ing, it will beobserved'that I here employ y llt) soas to provide a chainnelledconstruction, which is preferably although not neces# sarily U- shapedin cross-section, the channel 11 being-defined by the walls 12 and 13upstanding from the bottom 14. One of the walls 13 is shorter than theother wall 12, thus providing said other wall 12 with the extension 15and extending` forwardly from this extending portion 15 is the en#larged spoon-like member 16 having its upper edge curved as shown at 17and its lower edge inclined as shown at 18, the two meeting to form thepoint of the spoon 19. vThe shorterwall 13 of the channel 11 has its endedge preferably inclined as shown at 22. i

` For the purposes of predetermining the preliminary association of theblade'in the as to cause the free en holder, I provide an arrangementwhereby the two can be associated pivotally and in the embodiment of theinvention this comprisesv a projection extending from the lnner 'surfaceof the extending portion 15 of the wall 12, the projection 25 extendinginto the path of the blade when in thev channel 11 and into the spacethat forms a continuation of vthe channel `between the walls 12 and 13.and the blade 26 which I prefer to use is provided with a slot oropening 27-.which 'is arranged to be received on saidpivot projection 25so yas to permit the blade 26 to have a pivotal movement with referenceto the holder, but to prevent any other movement of the blade withreference thereto except that movement byy which the blade is associatedwith or removed from said projection 25, and while' in the embodimentherein disclosed, the blade 26 is shown as provided with a hole 27 toform a bearing i A for pivot pin 25, it will be understood that theblade mightr also be provided with a slot open to the bottom thereof. v

The blade initially positioned as shown in Fig. 3 of the drawing, cannow be moved Jto itsfinal or operative position of associationz with theholder by swinging it clockwise'abou't the pivot 25 until the forwardpart of the. body of the blade seats on the bottom of the channel whichis its final position of operatio-n as shown in Fig. 1 of the drawingand for holding the blade yin this position, I provide the arrangementwhich I will now describe.v

The spoon 16 is preferably provided with the tongue 30'formed by thecuts 31, 32 and 33 to permit the tongueto be punched up so d of thefinger or vtongue 30 formed by such cuts, to project upwardly above thesurface'ofthe spoon 16 for a substantial distance. The spoon is furtherprovided at the lower end of the inclined lower edge 418 with theupwardly' `extending abutment portion 35 preferablv wedge'shaped andincreasing` in height in the direction of the spoon tip 19.

The dimensions of the blade is such that as vthe blade 26 is moved `fromits position of Fig. 3 to its position of final association as shown inFig. 1, the rear end of the blade will pass over the wedge abutment 35,which movement is permitted by the fact that the blade is flexible, andupon a continuation of such movement, the end of the blade will be movedunder and be received beneath the finger 30, Fig. 4 of the drawingshowing the blade at the beginning of its movement into position beneaththe finger 30 and inv the continued movement of the blade, a point willbe reached in which the blade will be fullyv received beneath the finger30 and inermediate the rear edge thereof as shown in iig. 1. f

The rear edge of the blade 26 is preferably curved as shown at 38 alongan arc of acircle of which the pivot 25 y1s the centerv of rotation andthe lower partof the rear edge of the blade is inclined as shown at 39so that when the blade is in its linal posi.

tion of association as shown in Fig. 1 of the drawing, the portion 39 ofthe rear edge'ofv the blade will register with and be received in'backof the wedge abutment 35.

As has already been stated, the rear end of the blade as it passes overthe wedge abutment 35 is slightly flexed and as-the blade is moved toits position of Fig. 1, the rear edge thereof will have passed by thisabutment 35 and will resume its normal flat position in back of suchabutment with the edge 39 in contact with and in back of the abutment 35so that no reverse or counterclockwise movement of the blade ispermit-ted. v

A forward or clockwise pivotal movement of the blade beyond itsAposition of Fig. 1 of the drawing is prevented by the engagement of thelower edge of the blade with the bottom of the channel 11. A movementupwardly out of the channel is prevented by the pivot pin 25 and amovement side wise out of the channel is prevented by the engagementwith lthe blade with the side walls 11 and 12 and with the tongue 30.

To remove the blade for replacement, all that is necessary to do is toflex the vlower inclined portion 39 of the rear edge upwardlysuliciently so as to permit the blade to be moved from its position ofFig. 1 in a counterclockwise direction `and over the abutment 35 untilit reaches a position free of said abutment such as that shown in Fig. 3upon which it can 'be freely removed from its pivot 25.

yThe cutting edgey 26 reference to the lowerv edge 26 of the blade andthe angle of incline' and the ylength of the Cutting edge withreferenceto its point of-pivot 25 is such that thiscutting edge is is inclinedwith lUpon viewing Fig. :l of the drawing, it

will be observed that the lower edge of the blade not only seats on thebottom of the` channel 11, but also seats on the wedge abut- Jnient 35so that, in fact, theseat for the v'illustratedits use, what I claim asnew and desire to secure by Letters Patent is:

.1. For use 1n looms for weaving pileI fabrics, a holder adapted to formpart of` a pile wire and to receive a cutting implement or the blade andmeans for holding the blade in operative association with said holder,said means including a pivot passing through the blade an-,d about whichthe blade is adapted to swing as it moves into such operativeassociation,

2. For use in looms for weaving pile fabrics, a blade holderl having achannel therein adapted to receive a blade, one wall of the channelhaving a portion eX- tending beyond thev other and means for holding theblade in the channel, said meansl including a pivot about which theblade is adapted to swing, said pivot being carried by said extendingportion of one of the walls. f

3. For use in looms for weaving pile fabrics, a blade holder having achannel therein adapted to receive a blade, one of the walls of thechannel presenting a portion which is exposed laterally with referenceto the other wall and means for holding a blade in the channel, saidmeans including a pivot about which the blade is adapted to swing, saidlpivot being carried by said exposed portion of one of the walls.

4. For use in looms for weaving pile fabrics, a holder adapted to formpart of a pile wii'e and to receive a cutting implement or the blade andmeans for holding the bladev in operative association with said holder,said means including a pivot about which the blade is adapted to swingas it moves into such operative association, and mea-ns spaced from andcooperating with said pivot to lock the blade in position..

5. For use in looms for weaving pile fabrics. a holder adapted to formpart of a pile wireand to receive a cutting implement or the blade andmeans for holding the blade in operative association with said holder.said means including'a pivot passing through the blade yand about whichthe blade is adapted to swing as it moves into such operativeassociation. and means spaced from the pivot and adapted to engage withthe blade as it moves about the pivot to its operative position to lockthe blade in operative position, and means for preventing a reversemovement of the blades from its operative position.

'6. For use in `looms for weaving pileV fabrics, a-pile wire bladeholder having `a channel Yadapted to receivetheblade with rits loweredge seatedv therein and-means for holding the blade in the channelcomprising a supplemental seat for the lower edge of the blade spacedfrom said channel, and u c-ver which the blade flexes as it moves intothe channel. v. p

7. A 'pile wire blade holder comprising a member having la channeldefined by upstanding walls, andv means for holding the blade frommovementin said channehcomprising spaced apart members. :carried by oneof said upstanding walls and;cooperating with one end of the blade, oneof said members being in the form of a linger positioiied in spacedrelation to said wall and adapted to overlap an end of the blade whichis received between it and the said wall.

8. A pile wire blade holder comprising a member having a. channeldefined by upstanding walls, `and means for holding the blade frommovement in said channel, comprising spaced apart members carried by oneof said upstanding walls and cooperating with one end of the blade, oneof said members being in the form of a finger positioned in spacedrelation to said wall and adapted to overlap an'end of the blade whichis received between it andthe. said wall, and the other of said memberscomprising an abutment over which the blade flexes as it moves to itsaforementioned overlapped position.

being extended beyond the other to form a spo-on end for the holder, andmeans for holding said blade in position in said channel, said meanscomprising a plurality of yspaced apart members, two of which engage theblade adjacent one end and the other of which engages the blade at apoint remote from such end, one of the two aforementioned memberscoinprising an abutment carried by the spoon and presented in the pathof movement of the blade to lits position of operative association withthe holder so as to cause said end of the blade to iiex thereover as theblade is moved to such position.

l0. A pile wire blade holder comprising a in eniber having upstandingwalls defining` a channel therebetween, one of saidl walls beingextended beyond the other to form a spoon end for the holder, and meansfor holding said plate in position in said channel, said meanscomprising a plurality of spacedapart members, one of which is in theform of an abutment carried by the spoon at its perimeter and-soarranged and se f blade is moved to its position of operative vposition.

11.-k A pile Wire blade holder comprising a member having a bottomandupstanding Walls to define a channel in which theblade vris received,one of said Walls extending lonvgitnldinally beyond the other, andvmeansfor holding a blade in said channel With the lower edge lthereof seatedon the channel i bottom, said means comprising spaced apart abutmentsVoarriedby said longitudinally eX- tendingportion of the blade, one ofsaid abutments being spaced a substantial distance from said bottom, andbeing arranged and constructed that as the blade is moved to its.operative position with the lower edge of the blade seated in thechannel, one end of` the blade will flex over and past said abutment anda portion of the perimeter of the blade Will position itself in back ofand in contacting association VWith said abutment so as to prevent areverse movement of the blade.

In Witness whereof, I have signed this specification this 1st day ofJuly, 1925.

MARCUS B. BEHRMAN.

